What is the TreeMap.values() method in Java?
In this shot, we will learn how to use the TreeMap.values() method in Java, which is present in the TreeMap class inside the java.util package.
The TreeMap.values() method is used to obtain the set of values present in the key-value pairs in the TreeMap.
Syntax
The syntax of the TreeMap.values() method is shown below:
Collection<V> values();
Parameter
The TreeMap.values() method does not accept any parameters.
Return
The TreeMap.values() method returns a collection of values present in the key-value pairs in the TreeMap.
Code
Let’s have a look at the code.
import java.util.*;class Main{public static void main(String[] args){TreeMap<Integer, String> s = new TreeMap<Integer,String>();s.put(2,"Learn");s.put(12,"in-demand");s.put(31,"tech");s.put(18,"skills");s.put(25,"on");s.put(36,"Educative.io");System.out.println("TreeMap mappings are: "+ s);System.out.println("The values in the TreeMap are: " + s.values());}}
Explanation:
-
In line 1, we imported the required package.
-
In line 2, we made a
Mainclass. -
In line 4, we made a
main()function. -
In line 6, we declared a
TreeMapconsisting of keys of typeIntegerand values of typeString. -
From lines 8 to 13, we inserted values in the
TreeMapusing theTreeMap.put()method. -
In line 15, we displayed the mappings of the present in the
TreeMap. -
In line 17, we used the
TreeMap.values()method to obtain the set of values present in the key-value pairs in theTreeMapand displayed it.
So, this is how to use the TreeMap.values() method in Java.
